Home / 6,113.25-8,436.29-3,318.75

Finding the Fourth Proportional to 6,113.25, 8,436.29 and 3,318.75

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Solution

The fourth proportional to 6,113.25, 8,436.29 and 3,318.75 is: 4,579.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,113.25 : 8,436.29 = 3,318.75 : x
  2. Step 2: Convert to fraction form
    6,113.25/8,436.29 = 3,318.75/x
  3. Step 3: Cross multiply
    6,113.25x = 8,436.29 × 3,318.75
  4. Step 4: Simplify right side
    6,113.25x = 27,997,920.84
  5. Step 5: Solve for x
    x = 27,997,920.84/6,113.25
  6. Step 6: Final answer
    x = 4,579.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.